Handle of a tool



FIG. 1 is a front-right-top perspective view of the handle of a tool, showing my new design;

FIG. 2 is a front elevational view thereof, the rear side being a mirror image thereof;

FIG. 3 is is a left elevational view thereof, the right side being a mirror image thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for the handle of a tool, as shown and described. 